Port knocking: a stealthy system for network authentication across closed ports

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Perl prototype: v0.30

pcaplib support added; daemon no longer requires firewall log file

2004-Nov-14 18:59 | ...more

new Net::Pcap support added to sniff packets directly ...more

Freely copy these images for your use. Look for banners in your own language in the international section.

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Please do not link to these images directly from your pages - make a local copy. If you would like to contribute any artwork, let me know.

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port knocking images

Port knocking and the perl implementation were the subject of an article by Christopher Kunz in the German computing magazine c't (magazin fur computer technik) (issue 14/2004). The article featured this image of a penguin, which I really like.

last updated 2004-Jul-08 14:51